Heat oven to 350°.,Combine mashed potato flakes, sugar, oleo, milk and coconut extract; mix well.,Lightly spoon flour into measuring cup.,Level off.,Stir in flour, coconut and nuts (dough will be stiff).,Shape into 1-inch balls.,Place on ungreased cookie sheets.,Bake at 350° for 12 to 15 minutes or until firm to touch (cookies should not brown).,______,Roll cookies in powdered sugar.,Return to rack to cool completely.,Makes 36 to 48 cookies.